TWM655175U - Non-stick spray head structure of laser processing machine - Google Patents

Abstract

The invention relates to a non-stick nozzle structure of a laser processing machine, comprising a nozzle of a nozzle body provided with a receiving portion, the receiving portion forming a narrow end at the outer edge of the nozzle body; a protective member having a large diameter end and a small diameter end, the periphery of the small diameter end forming a fixed step; the protective member is arranged in the receiving portion, the periphery of the large diameter end is tightly fitted with the inner edge of the receiving portion, the fixed step and the inner edge of the narrow end form a gap, an external force is applied to the outer edge of the narrow end, so that the narrow end is deformed and retracted after being subjected to the external force, and is pressed against the fixed step to fill the gap, so that the protective member is fixed in the receiving portion. In this way, the conductivity of the protective element will not be deteriorated, and the efficiency and quality of the laser processing can be maintained.

Description

Non-stick spray head structure of laser processing machine

This invention relates to a laser nozzle for a laser processing machine that does not deteriorate the conductivity of a protective component.

At present, the end of the nozzle of a common laser processing machine needs to be surface treated so that the nozzle can meet the processing requirements such as anti-spatter adhesion and heat resistance. For example, there is the patent case of invention No. CN1798628 "Nozzle for processing machine, conductive nozzle for welding, manufacturing method of nozzle for processing machine, manufacturing method of conductive nozzle for welding" announced on April 18, 2012 in mainland China. It discloses: In order to achieve the long life of the nozzle for processing machine, a hard ceramic coating film is formed on the surface of the metal base material of the nozzle for processing machine. By forming a hard ceramic coating film on the surface of the metal base material of the nozzle for processing machine, the nozzle for processing machine is not easy to cause damage on the surface and has good heat resistance. Therefore, the nozzle for the processing machine can prevent the occurrence of damage due to contact with the burrs of the workpiece being processed, deformation due to heat, etc., which would otherwise shorten the service life, thereby achieving a longer service life.

Since the patent forms a hard ceramic coating on the surface of the metal base material of the processing machine nozzle, the surface of the processing machine nozzle can be protected by the hard ceramic coating to extend the service life of the processing machine nozzle. However, with the changes in market demand, different products are still to be proposed to meet the diverse needs of the market. In addition, the nozzle structure is complex, difficult to manufacture and the cost is high, so it is not popular in use.

Therefore, there is a patent case No. I634963 "Laser Processing Machine and Nozzle Thereof" published on September 11, 2018 in the Republic of China. It discloses that the nozzle includes a nozzle body and a protective member, the nozzle body defines a laser channel, the protective member is combined with one end of the nozzle body, the protective member has a through hole, the through hole is connected to the laser channel, and the material of the protective member is a conductive material that does not contain metal elements.

Although the protective member of the above-mentioned patent is combined with the end of the nozzle body by embedding each other, in order to be more secure and prevent it from falling off, a layer of glue or adhesive is still applied between the protective member and the end to achieve the effect of preventing it from falling off. However, due to the non-conductive property of glue or adhesive, the conductivity of the protective member will be reduced, which will affect the efficiency and quality of laser processing, so it is not ideal in use.

Therefore, in view of the above-mentioned shortcomings of the nozzle structure currently used in laser processing machines, this invention provides a non-stick nozzle structure for laser processing machines, including: a nozzle body, one end of which is provided with a fixed end, and the other end of which is provided with a nozzle, the nozzle is provided with a receiving portion inwardly concave, a laser channel is formed through the receiving portion between the nozzle and the fixed end, and the receiving portion is provided with a beam end at the outer edge of the nozzle body; a protective member is fixedly connected to the receiving portion, and the protective member has a large diameter end and a small diameter end, and the periphery of the small diameter end forms a A fixed step is provided with a step difference from the large diameter end, and the protective member is provided with a through hole penetrating the large diameter end and the small diameter end; the protective member is arranged in the accommodating portion, the periphery of the large diameter end is tightly fitted with the inner edge of the accommodating portion, and a gap is formed between the fixed step and the inner edge of the constriction end. An external force is applied to the outer edge of the constriction end, so that the constriction end is deformed and retracted after being subjected to the external force, and is pressed against the fixed step to fill the gap and fix the protective member in the accommodating portion.

The nozzle body is made of copper or copper alloy.

The fixing end has a thread around its periphery.

The periphery of the above-mentioned bundle end tapers in a cone shape.

The protective member is made of graphene or graphite.

The large diameter end and the small diameter end are integrally formed.

The outer diameter of the large-diameter end is equal to the inner diameter of the accommodating portion.

The above-mentioned beam end is located around the periphery of the nozzle, and the end surface of the small diameter end is aligned with the nozzle.

The external force is generated by rolling, tumbling or punching.

The above-mentioned bundle end completely surrounds and fixes the small-diameter end, so that the protective member and the nozzle body are tightly fitted and fixed to prevent the protective member from loosening and separating from the nozzle body.

The above technical features have the following advantages:

1. By applying external force by rolling, rolling or punching, the bundle end is deformed and retracted after being subjected to force, and can be pressed against the fixing step of the protective member, so that the protective member and the nozzle body can be tightly fitted and fixed to prevent the protective member from loosening and separating from the nozzle body.

2. Due to the stable connection between the protective part and the nozzle body, there is no need to use any glue or adhesive. Therefore, there will be no defect that the conductivity of the protective part will be reduced due to the non-conductive properties of glue or adhesive, so the efficiency and quality of laser processing can be maintained.

3. During the laser processing, the protective part is made of graphene or graphite material, which has the characteristics of high temperature resistance, light weight, and easy processing. The protective part is combined with the end of the nozzle body to prevent the sputtering during processing from adhering to the nozzle body, thereby achieving the effect of reducing the sputtering adhesion.

Please refer to the first, second and third figures, the present invention embodiment includes: a nozzle body 1 and a protective member 2, wherein:

The nozzle body 1 is made of copper or copper alloy, and is easy to process, manufacture and assemble. A threaded fixed end 11 is provided at one end of the nozzle body 1 for fixing to a laser processing machine. A nozzle 12 is provided at the other end of the nozzle body 1. The nozzle 12 is provided with a receiving portion 13 which is recessed inwardly. A laser channel 14 is formed between the nozzle 12 and the fixed end 11 and passes through the receiving portion 13. A conical tapered converging end 15 is formed between the receiving portion 13 and the outer edge of the nozzle body 1. The converging end 15 is located around the nozzle 12.

The protective member 2 is fixedly coupled to the receiving portion 13 of the nozzle body 1. The protective member 2 is made of graphene or graphite, and has the characteristics of high temperature resistance, light weight, easy processing, and can reduce the adhesion of sputtering. The protective member 2 is integrally formed and connected to a large diameter end 21 and a small diameter end 22, and the periphery of the small diameter end 22 is formed with a fixed step 23 having a step difference with the large diameter end 21. The outer diameter of the large diameter end 21 is equal to the inner diameter of the receiving portion 13. The protective member 2 is provided with a through hole 24 that passes through the large diameter end 21 and the small diameter end 22, and the through hole 24 can correspond to the laser channel 14.

The combination of the protective member 2 and the nozzle body 1 is shown in the second, third and fourth figures, where the large diameter end 21 of the protective member 2 is placed in the accommodating portion 13 of the nozzle body 1 through the constricting end 15, so that the protective member 2 is completely placed in the accommodating portion 13, and the periphery of the large diameter end 21 is tightly fitted with the inner edge of the accommodating portion 13, and the fixed step 23 around the small diameter end 22 forms a gap with the inner edge of the constricting end 15. The end surface of the small diameter end 22 can be aligned with the nozzle 12 located at the constricting end 15, and the through hole 24 corresponds to the nozzle 12 and the laser channel 14 respectively. Then, an external force is applied to the outer edge of the constricted end 15 at a position corresponding to the small diameter end 22 by rolling, rolling or punching, so that the constricted end 15 is deformed and retracted by the external force, and can be pressed against the fixed step 23 to fill the gap (as shown in the fifth figure). In this way, the constricted end 15 is used to completely surround and fix the small diameter end 22, so that the protective member 2 and the nozzle body 1 can be tightly fitted and fixed (as shown in the sixth figure) to prevent the protective member 2 from loosening and separating from the nozzle body 1.

When in use, as shown in the sixth, seventh and eighth figures, the threaded fixed end 11 of the nozzle body 1 is screwed to a laser processing machine A. The laser processing machine A includes a laser generating module A1 and a focusing module A2. The focusing module A2 corresponds to the laser generating module A1 and is used to focus a laser generated by the laser generating module A1. The laser can enter through the fixed end 11 of the nozzle body 1, pass through the laser channel 14 and the through hole 24 of the protective member 2, and then be emitted from the nozzle 12 of the beam end 15, so as to perform laser processing on a workpiece B.

During the laser processing process using the laser processing machine A, the protective member 2 is made of graphene or graphite, which has the characteristics of high temperature resistance, light weight, and easy processing, so that the protective member 2 is combined with the end of the nozzle body 1, which can prevent the sputtering during processing from adhering to the nozzle body 1, so as to achieve the effect of reducing the sputtering adhesion. In addition, by using external forces such as rolling, rolling or punching, the bundle end 15 is deformed and retracted after being subjected to force, and can be pressed against the fixed step 23, so that the protective member 2 and the nozzle body 1 can be tightly embedded and fixed to prevent the protective member 2 and the nozzle body 1 from loosening and separating. Such a stable bonding relationship does not require the use of any glue or adhesive, so the conductivity of the protective member 2 will not be deteriorated due to the non-conductive properties of the glue or adhesive, so the efficiency and quality of the laser processing can be maintained.

Combined with the description of the above embodiments, one can fully understand the operation, use and effects of the present invention. However, the above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of implementation of the present invention. In other words, simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention description are all within the scope covered by the present invention.

1: Nozzle body 11: Fixed end 12: Nozzle 13: Accommodation 14: Laser channel 15: Beam end 2: Protective part 21: Large diameter end 22: Small diameter end 23: Fixed step 24: Through hole A: Laser processing machine A1: Laser generation module A2: Focusing module B: Workpiece

[Figure 1] is a three-dimensional exploded view of an embodiment of this invention.

[Figure 2] is an anatomical view of an embodiment of the present invention.

[Figure 3] is a combined cross-sectional view of this creative embodiment.

[Figure 4] is a schematic diagram of the protective member of the present invention being placed in the receiving portion of the nozzle body.

[Fifth Figure] is a schematic diagram of the present invention in which an external force is applied to the end of the tie-mouth to cause it to deform and contract and press against a fixed step.

[Figure 6] is a three-dimensional external view of the protective member of the present invention embodiment fixed to the nozzle body.

[Figure 7] is a schematic diagram of the present invention embodiment assembled on a laser processing machine.

[Figure 8] is a schematic diagram of the present invention's embodiment of using a laser processing machine to process a workpiece.

1: Nozzle body

11: Fixed end

12: Nozzle

13: Accommodation section

14: Laser channel

15: tie end

2: Protective parts

21: Large diameter end

22: End of the small path

23: Fixed level

24:Through hole

Claims (10)

A non-stick nozzle structure for a laser processing machine includes: A nozzle body, one end of which is provided with a fixed end, and the other end of which is provided with a nozzle, the nozzle is provided with a receiving portion inwardly concave, a laser channel is formed through the receiving portion between the nozzle and the fixed end, and the receiving portion forms a beam end at the outer edge of the nozzle body; A protective member is fixedly connected to the receiving portion, the protective member has a large diameter end and a small diameter end, the periphery of the small diameter end is formed with a fixed step having a step difference with the large diameter end, and the protective member is provided with a through hole penetrating the large diameter end and the small diameter end; The protective member is installed in the receiving portion, the periphery of the large diameter end is tightly fitted with the inner edge of the receiving portion, the fixed step and the inner edge of the constriction end form a gap, and an external force is applied to the outer edge of the constriction end, so that the constriction end is deformed and retracted after being subjected to the external force, and pressed against the fixed step to fill the gap and fix the protective member in the receiving portion. A non-stick nozzle structure for a laser processing machine as claimed in claim 1, wherein the nozzle body is made of copper or copper alloy. As in claim 1, the non-stick nozzle structure of the laser processing machine has a thread around the periphery of the fixed end. As in claim 1, the non-stick nozzle structure of the laser processing machine, wherein the periphery of the beam end tapers in a conical shape. As in claim 1, the non-stick nozzle structure of the laser processing machine, wherein the protective part is made of graphene or graphite. As in claim 1, the non-stick nozzle structure of the laser processing machine, wherein the large diameter end and the small diameter end are integrally formed and connected. As in claim 1, the non-stick nozzle structure of the laser processing machine, wherein the outer diameter of the large diameter end is equal to the inner diameter of the accommodating portion. As in claim 1, the non-stick nozzle structure of the laser processing machine, wherein the beam end is located around the periphery of the nozzle, and the end surface of the small diameter end is aligned with the nozzle. In the non-stick nozzle structure of the laser processing machine of claim 1, the external force is generated by rolling, rolling or punching. In the non-stick nozzle structure of the laser processing machine as claimed in claim 1, the bundle end completely surrounds and fixes the small diameter end, so that the protective part and the nozzle body are tightly fitted and fixed to prevent the protective part from loosening and separating from the nozzle body.

Images